JADEK  A couple days ago I installed 32-bit Vista Home Premium w/SP1 on my 2008 MacBook (Leopard 10.5.4) with 4GB of RAM. I did a clean install under Boot Camp to a 32GB partition.

I got the notice for BootCamp 2.1 and tried a live online install. It crashed.

I then DL'd the executable. It wouldn't install. It would just hang part way thru and wouldn't cancel. I had to kill it with Task Manager. I activated Vista's hidden Administrator account and tried again from there. Same results.

After thinking about what I observed during my attempts with the .EXE install file, I decided to try again, but this time with my Mac OS X Install Disk 1 inserted in my DVD drive. This time the install did not hang and I thought I heard a couple of accesses of the DVD during the process. I note the update does not say anything about having the DVD installed. Could the installation have been a random success?

My experience with Vista is that it will not shut down completely after some use. If I wait for the shutdown process to end on its own I get the BSOD (Blue Screen of Death) and the msg Driver_Power_State_Failure and a dump of the error to disk. I have also gotten the same BSOD after bringing Vista out of sleep mode. I have not yet tried to analyze the error dumps, but I suspect a driver problem still exists even with this update.  
(Version 2.1)

JIC  I downloaded this update (WinXP-32) from MacUpdate and from Apple, both files were exactly the same, but I couldn't install any of them. After a short "Preparing Install" message, nothing happened for several hours. I did it again after a reboot, and it was the same.

I access my BootCamp partition by the standard way and also by VMWare Fusion. Please don't try to install this update in Windows Safe (or also Clean) Mode, as someone recommended me, you will loose your Windows Activation.

Any hint about how to install this update?  
(Version 2.1)

BLUESTAR  First of all: all of these people seeing nothing happening for a while when launching the update: Be patient - it will install, it needs to unpack the installation bits which take some time. Just hold on and do not cancel the process. I worked for me...

I have a Mac Pro Quad Core 2.7 Ghz Mac. I had Windows XP (SP2) running with the original Bootcamp 2.0 drivers that came with the Mac on the install disks just fine. I installed Bootcamp 2.1 from a stand-alone download under XP (SP2). When I restarted I was greeted by a horrible 640x480 4-bit color screen telling me my drivers are out of date and were made for a previous version of Windows (?!?!) (the default VGA driver was loaded) I am unable to get my display set up properly all settings are greyed out. I have a dual monitor setup with an ATI x1900 PCIe card and a ATI Radeon HD 2600 PCIe card. Neither of them work now. I had to restore my system via System Restore to a state 2 weeks earlier to get my Windows XP back.  
(Version 2.1)

TUBO  Requirement: Installed Bootcamp 2.0

Couldn't get installing anything - you HAVE to install Bootcamp 2.0 (from Leopard DVD inserted under Windows) first! I forgot it after upgrading from 10.4 to 10.5...

Worked well.  
(Version 2.1)

BLOOBIE  No problems updating last night. Ran Apple Software Update from within Windows (while booted in VMWare) and it downloaded/installed without a hitch. Now I'm ready for whatever will now be broken on Monday when SP3 is released. :)  
(Version 2.1)

SHOTGUNWEDDINGS  Doesn't do diddly squat for Windows XP SP2 for me either. Nothing happens when I double clicked it.  
(Version 2.1)

MYSTICALOS  Failed for me too using stand alone in vista. Installer simply mis reports that install cannot take place because system reboot is already pending (which isn't). Also takes a VERY long time to load any screen at all..2.0 was a good step in right direction as it fixed most of the installer bugs 1.x branch had, but 2.1 is a huge regression to installer as it's now buggy once again.  
(Version 2.1)

JETFIREDX  Downloaded several times for WindowsXP both from MacUpdate and from Apple directly. Doesn't extract any files. Windows Task Manager shows the process consuming some RAM and CPU and then suddenly quits without an error. Nothing of note in the system logs.

MacBook CoreDuo

Windows XP Pro SP2  
(Version 2.1)